| Humenne to Oerlinghausen | 617.91 mi (994.43 km) |
| Humenne to Oestrich-Winkel | 627.83 mi (1,010.39 km) |
| Humenne to Offenburg | 637.12 mi (1,025.34 km) |
| Humenne to Oftersheim | 601.98 mi (968.80 km) |
| Humenne to Ohrdruf | 513.81 mi (826.90 km) |
| Humenne to Ohringen | 561.29 mi (903.30 km) |
| Humenne to Olbernhau | 400.33 mi (644.27 km) |
| Humenne to Olching | 486.45 mi (782.86 km) |
| Humenne to Oldenburg | 660.69 mi (1,063.27 km) |
| Humenne to Oldenburg in Holstein | 599.70 mi (965.12 km) |
| Humenne to Olfen | 667.53 mi (1,074.28 km) |
| Humenne to Olpe | 640.58 mi (1,030.91 km) |
| Humenne to Olsberg | 616.36 mi (991.93 km) |
| Humenne to Oranienburg | 460.67 mi (741.38 km) |
| Humenne to Ortenberg | 582.50 mi (937.44 km) |
